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The figure below shows a conducting rod of negligible resistance that can slide on smooth U-shaped rail made of wire of resistance 2 Ω/m. The position of the conducting rod at t = 0 is shown. A time-dependent magnetic field B = 4t T is switched on at t = 0.
The current in the loop at t = 0 due to induced emf is
  • a)
    0.21 A, clockwise
  • b)
    0.42 A, clockwise
  • c)
    0.21 A, anticlockwise
  • d)
    zero
Correct answer is option 'A'. Can you explain this answer?
Most Upvoted Answer
The figure below shows a conducting rod of negligible resistance that...
Induced current,
=
= 0.21 A
Using Lenz's law, the upper end of the rod is negative which makes the current flow clockwise.
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The figure below shows a conducting rod of negligible resistance that can slide on smooth U-shaped rail made of wire of resistance 2 Ω/m. The position of the conducting rod at t = 0 is shown. A time-dependent magnetic field B = 4t T is switched on at t = 0.The current in the loop at t = 0 due to induced emf isa)0.21 A, clockwiseb)0.42 A, clockwisec)0.21 A, anticlockwised)zeroCorrect answer is option 'A'. Can you explain this answer?
Question Description
The figure below shows a conducting rod of negligible resistance that can slide on smooth U-shaped rail made of wire of resistance 2 Ω/m. The position of the conducting rod at t = 0 is shown. A time-dependent magnetic field B = 4t T is switched on at t = 0.The current in the loop at t = 0 due to induced emf isa)0.21 A, clockwiseb)0.42 A, clockwisec)0.21 A, anticlockwised)zeroCorrect answer is option 'A'. Can you explain this answer? for JEE 2024 is part of JEE preparation. The Question and answers have been prepared according to the JEE exam syllabus. Information about The figure below shows a conducting rod of negligible resistance that can slide on smooth U-shaped rail made of wire of resistance 2 Ω/m. The position of the conducting rod at t = 0 is shown. A time-dependent magnetic field B = 4t T is switched on at t = 0.The current in the loop at t = 0 due to induced emf isa)0.21 A, clockwiseb)0.42 A, clockwisec)0.21 A, anticlockwised)zeroCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for JEE 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The figure below shows a conducting rod of negligible resistance that can slide on smooth U-shaped rail made of wire of resistance 2 Ω/m. The position of the conducting rod at t = 0 is shown. A time-dependent magnetic field B = 4t T is switched on at t = 0.The current in the loop at t = 0 due to induced emf isa)0.21 A, clockwiseb)0.42 A, clockwisec)0.21 A, anticlockwised)zeroCorrect answer is option 'A'. Can you explain this answer?.
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